In 6- or 8-quart pan, melt butter on medium-low heat with onions. After onions are translucent, add garlic and rosemary for 2 minutes.
Add sausage and cook another 2 or 3 minutes. Add potatoes and cover potatoes with water. Change heat to high and bring potatoes to a boil.
After potatoes become very tender, to the point of falling apart, reduce heat to low and add cheese a little at a time until all melted. Add milk, salt, and pepper and cover for 15 minutes.
Great with saltine crackers.
A viewer or guest of the show, who may not be a professional cook, provided this recipe. It has not been tested for home use.
Recipe courtesy of Ronnie Lawson of Temple, TX, for FoodTV.com's Potato Championship Cook-Off